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Finding the Fourth Proportional to 5,509.76, 7,613.52 and 4,015.08

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Solution

The fourth proportional to 5,509.76, 7,613.52 and 4,015.08 is: 5,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.76 : 7,613.52 = 4,015.08 : x
  2. Step 2: Convert to fraction form
    5,509.76/7,613.52 = 4,015.08/x
  3. Step 3: Cross multiply
    5,509.76x = 7,613.52 × 4,015.08
  4. Step 4: Simplify right side
    5,509.76x = 30,568,891.88
  5. Step 5: Solve for x
    x = 30,568,891.88/5,509.76
  6. Step 6: Final answer
    x = 5,548.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.